81504 ÷ 8 = 10188 R0
Let's divide 81504 by 8.

Step 1:
8 goes into 8 1 times with a remainder of 0.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 8 from 8 to get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 8

Step 2:
8 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of of the result. 
Result so far: 10
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 8

Step 3:
8 goes into 15 1 times with a remainder of 7.
Write down 1 as next digit of of the result. 
Result so far: 101
Subtract 8 from 15 to get 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 8

Step 4:
8 goes into 70 8 times with a remainder of 6.
Write down 8 as next digit of of the result. 
Result so far: 1018
Subtract 64 from 70 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 8

Step 5:
8 goes into 64 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 10188
Subtract 64 from 64 to get 0.

The final result is 10188 with a remainder of 0.